UA 3634 then AA 6097 at Charlotte
Washington → Charlotte → Greenville-Spartanburg
Timetable, Charlotte time
10:42UA 3634 from Washington at the gate
07:15AA 6097 to Greenville-Spartanburg leaves the gate
20 h 33 apart on the timetable, overnight
AA 6097 leaves 20 h 33 after UA 3634 arrives on the timetable: more than half a day, so not a connection we count.